Yes, of course there are a lot of examples of people who had gotten into bitcoin, and they ended up selling too much bitcoin too soon, and then they end up experiencing psychological difficulties to get back into bitcoin by buying more bitcoin at a higher price than the price they had sold.
One of the most obvious examples is Op, after seeing the fact that the price of Bitcoin continues to increase, Op experiences psychological difficulties and regrets because he feels he has done a reckless act.
Bitcoin always presents many stories, ranging from success to sad stories of its users. The desire to continue to collect bitcoin fragments can be done by anyone, there is nothing wrong if you start now. For those who want to start it can be done with a small amount and and continue to increase slowly.
Try to set a long-term investment strategy, even though the ups and downs of market fluctuations continue to occur, don't panic because it is part of the plan. So many investors have done interesting things in their lives, even though there is a strong tide going on, they will continue to stick around.
So it should be a lesson to us that bitcoin has an interesting story every year.
Even though we have taken reckless actions because we sold too fast and finally made the psychology deeper, we have to start again even though the price is already high but this can still be done by anyone, so I think forget the dark past and start with a new hope to earn bitcoin fraction from now.
I myself have been trying to make long-term investments with the DCA strategy and this has been going very well, the ups and downs of the market due to fluctuations for me have to be passed, we have to keep going until our goals are achieved.